import jQuery from 'jquery'
(function ($) {
  var supportedCSS; var styles = document.getElementsByTagName('head')[0].style; var toCheck = 'transformProperty WebkitTransform OTransform msTransform MozTransform'.split(' ')
  for (var a = 0; a < toCheck.length; a++) if (styles[toCheck[a]] !== undefined) supportedCSS = toCheck[a]
  // Bad eval to preven google closure to remove it from code o_O
  // After compresion replace it back to var IE = 'v' == '\v'
  var IE = eval('"v"=="\v"')

  jQuery.fn.extend({
    rotate: function (parameters) {
      if (this.length === 0 || typeof parameters === 'undefined') return
      if (typeof parameters === 'number') parameters = { angle: parameters }
      var returned = []
      for (var i = 0, i0 = this.length; i < i0; i++) {
        var element = this.get(i)
        if (!element.Wilq32 || !element.Wilq32.PhotoEffect) {
          var paramClone = $.extend(true, {}, parameters)
          var newRotObject = new Wilq32.PhotoEffect(element, paramClone)._rootObj

          returned.push($(newRotObject))
        } else {
          element.Wilq32.PhotoEffect._handleRotation(parameters)
        }
      }
      return returned
    },
    getRotateAngle: function () {
      var ret = []
      for (var i = 0, i0 = this.length; i < i0; i++) {
        var element = this.get(i)
        if (element.Wilq32 && element.Wilq32.PhotoEffect) {
          ret[i] = element.Wilq32.PhotoEffect._angle
        }
      }
      return ret
    },
    stopRotate: function () {
      for (var i = 0, i0 = this.length; i < i0; i++) {
        var element = this.get(i)
        if (element.Wilq32 && element.Wilq32.PhotoEffect) {
          clearTimeout(element.Wilq32.PhotoEffect._timer)
        }
      }
    }
  })

  // Library agnostic interface
  var Wilq32 = window.Wilq32 || {}
  Wilq32.PhotoEffect = (function () {
    if (supportedCSS) {
      return function (img, parameters) {
        img.Wilq32 = {
          PhotoEffect: this
        }

        this._img = this._rootObj = this._eventObj = img
        this._handleRotation(parameters)
      }
    } else {
      return function (img, parameters) {
        // Make sure that class and id are also copied - just in case you would like to refeer to an newly created object
        this._img = img

        this._rootObj = document.createElement('span')
        this._rootObj.style.display = 'inline-block'
        this._rootObj.Wilq32 =
        {
          PhotoEffect: this
        }
        img.parentNode.insertBefore(this._rootObj, img)

        if (img.complete) {
          this._Loader(parameters)
        } else {
          var self = this
          // TODO: Remove jQuery dependency
          jQuery(this._img).bind('load', function () {
            self._Loader(parameters)
          })
        }
      }
    }
  })()

  Wilq32.PhotoEffect.prototype = {
    _setupParameters: function (parameters) {
      this._parameters = this._parameters || {}
      if (typeof this._angle !== 'number') this._angle = 0
      if (typeof parameters.angle === 'number') this._angle = parameters.angle
      this._parameters.animateTo = (typeof parameters.animateTo === 'number') ? (parameters.animateTo) : (this._angle)

      this._parameters.step = parameters.step || this._parameters.step || null
      this._parameters.easing = parameters.easing || this._parameters.easing || function (x, t, b, c, d) { return -c * ((t = t / d - 1) * t * t * t - 1) + b }
      this._parameters.duration = parameters.duration || this._parameters.duration || 1000
      this._parameters.callback = parameters.callback || this._parameters.callback || function () { }
      if (parameters.bind && parameters.bind != this._parameters.bind) this._BindEvents(parameters.bind)
    },
    _handleRotation: function (parameters) {
      this._setupParameters(parameters)
      if (this._angle == this._parameters.animateTo) {
        this._rotate(this._angle)
      } else {
        this._animateStart()
      }
    },

    _BindEvents: function (events) {
      if (events && this._eventObj) {
        // Unbinding previous Events
        if (this._parameters.bind) {
          var oldEvents = this._parameters.bind
          for (var a in oldEvents) {
            if (oldEvents.hasOwnProperty(a))
            // TODO: Remove jQuery dependency
            { jQuery(this._eventObj).unbind(a, oldEvents[a]) }
          }
        }

        this._parameters.bind = events
        for (var a in events) {
          if (events.hasOwnProperty(a))
          // TODO: Remove jQuery dependency
          { jQuery(this._eventObj).bind(a, events[a]) }
        }
      }
    },

    _Loader: (function () {
      if (IE) {
        return function (parameters) {
          var width = this._img.width
          var height = this._img.height
          this._img.parentNode.removeChild(this._img)

          this._vimage = this.createVMLNode('image')
          this._vimage.src = this._img.src
          this._vimage.style.height = height + 'px'
          this._vimage.style.width = width + 'px'
          this._vimage.style.position = 'absolute' // FIXES IE PROBLEM - its only rendered if its on absolute position!
          this._vimage.style.top = '0px'
          this._vimage.style.left = '0px'

          /* Group minifying a small 1px precision problem when rotating object */
          this._container = this.createVMLNode('group')
          this._container.style.width = width
          this._container.style.height = height
          this._container.style.position = 'absolute'
          this._container.setAttribute('coordsize', width - 1 + ',' + (height - 1)) // This -1, -1 trying to fix ugly problem with small displacement on IE
          this._container.appendChild(this._vimage)

          this._rootObj.appendChild(this._container)
          this._rootObj.style.position = 'relative' // FIXES IE PROBLEM
          this._rootObj.style.width = width + 'px'
          this._rootObj.style.height = height + 'px'
          this._rootObj.setAttribute('id', this._img.getAttribute('id'))
          this._rootObj.className = this._img.className
          this._eventObj = this._rootObj
          this._handleRotation(parameters)
        }
      } else {
        return function (parameters) {
          this._rootObj.setAttribute('id', this._img.getAttribute('id'))
          this._rootObj.className = this._img.className

          this._width = this._img.width
          this._height = this._img.height
          this._widthHalf = this._width / 2 // used for optimisation
          this._heightHalf = this._height / 2// used for optimisation

          var _widthMax = Math.sqrt((this._height) * (this._height) + (this._width) * (this._width))

          this._widthAdd = _widthMax - this._width
          this._heightAdd = _widthMax - this._height	// widthMax because maxWidth=maxHeight
          this._widthAddHalf = this._widthAdd / 2 // used for optimisation
          this._heightAddHalf = this._heightAdd / 2// used for optimisation

          this._img.parentNode.removeChild(this._img)

          this._aspectW = ((parseInt(this._img.style.width, 10)) || this._width) / this._img.width
          this._aspectH = ((parseInt(this._img.style.height, 10)) || this._height) / this._img.height

          this._canvas = document.createElement('canvas')
          this._canvas.setAttribute('width', this._width)
          this._canvas.style.position = 'relative'
          this._canvas.style.left = -this._widthAddHalf + 'px'
          this._canvas.style.top = -this._heightAddHalf + 'px'
          this._canvas.Wilq32 = this._rootObj.Wilq32

          this._rootObj.appendChild(this._canvas)
          this._rootObj.style.width = this._width + 'px'
          this._rootObj.style.height = this._height + 'px'
          this._eventObj = this._canvas

          this._cnv = this._canvas.getContext('2d')
          this._handleRotation(parameters)
        }
      }
    })(),

    _animateStart: function () {
      if (this._timer) {
        clearTimeout(this._timer)
      }
      this._animateStartTime = +new Date()
      this._animateStartAngle = this._angle
      this._animate()
    },
    _animate: function () {
      var actualTime = +new Date()
      var checkEnd = actualTime - this._animateStartTime > this._parameters.duration

      // TODO: Bug for animatedGif for static rotation ? (to test)
      if (checkEnd && !this._parameters.animatedGif) {
        clearTimeout(this._timer)
      } else {
        if (this._canvas || this._vimage || this._img) {
          var angle = this._parameters.easing(0, actualTime - this._animateStartTime, this._animateStartAngle, this._parameters.animateTo - this._animateStartAngle, this._parameters.duration)
          this._rotate((~~(angle * 10)) / 10)
        }
        if (this._parameters.step) {
          this._parameters.step(this._angle)
        }
        var self = this
        this._timer = setTimeout(function () {
          self._animate.call(self)
        }, 10)
      }

      // To fix Bug that prevents using recursive function in callback I moved this function to back
      if (this._parameters.callback && checkEnd) {
        this._angle = this._parameters.animateTo
        this._rotate(this._angle)
        this._parameters.callback.call(this._rootObj)
      }
    },

    _rotate: (function () {
      var rad = Math.PI / 180
      if (IE) {
        return function (angle) {
          this._angle = angle
          this._container.style.rotation = (angle % 360) + 'deg'
        }
      } else if (supportedCSS) {
        return function (angle) {
          this._angle = angle
          this._img.style[supportedCSS] = 'rotate(' + (angle % 360) + 'deg)'
        }
      } else {
        return function (angle) {
          this._angle = angle
          angle = (angle % 360) * rad
          // clear canvas
          this._canvas.width = this._width + this._widthAdd
          this._canvas.height = this._height + this._heightAdd

          // REMEMBER: all drawings are read from backwards.. so first function is translate, then rotate, then translate, translate..
          this._cnv.translate(this._widthAddHalf, this._heightAddHalf)	// at least center image on screen
          this._cnv.translate(this._widthHalf, this._heightHalf)			// we move image back to its orginal
          this._cnv.rotate(angle)										// rotate image
          this._cnv.translate(-this._widthHalf, -this._heightHalf)		// move image to its center, so we can rotate around its center
          this._cnv.scale(this._aspectW, this._aspectH) // SCALE - if needed ;)
          this._cnv.drawImage(this._img, 0, 0)							// First - we draw image
        }
      }
    })()
  }

  if (IE) {
    Wilq32.PhotoEffect.prototype.createVMLNode = (function () {
      document.createStyleSheet().addRule('.rvml', 'behavior:url(#default#VML)')
      try {
        !document.namespaces.rvml && document.namespaces.add('rvml', 'urn:schemas-microsoft-com:vml')
        return function (tagName) {
          return document.createElement('<rvml:' + tagName + ' class="rvml">')
        }
      } catch (e) {
        return function (tagName) {
          return document.createElement('<' + tagName + ' xmlns="urn:schemas-microsoft.com:vml" class="rvml">')
        }
      }
    })()
  }
})(jQuery)
